Jump to main content
Jump to site search

Issue 8, 2015
Previous Article Next Article

Giant reversible nanoscale piezoresistance at room temperature in Sr2IrO4 thin films

Author affiliations

Abstract

Layered iridates have been the subject of intense scrutiny on account of their unusually strong spin–orbit coupling, which opens up a narrow bandgap in a material that would otherwise be a metal. This insulating state is very sensitive to external perturbations. Here, we show that vertical compression at the nanoscale, delivered using the tip of a standard scanning probe microscope, is capable of inducing a five orders of magnitude change in the room temperature resistivity of Sr2IrO4. The extreme sensitivity of the electronic structure to anisotropic deformations opens up a new angle of interest on this material, with the giant and fully reversible perpendicular piezoresistance rendering iridates as promising materials for room temperature piezotronic devices.

Graphical abstract: Giant reversible nanoscale piezoresistance at room temperature in Sr2IrO4 thin films

Back to tab navigation

Supplementary files

Publication details

The article was received on 24 Nov 2014, accepted on 09 Jan 2015 and first published on 12 Jan 2015


Article type: Communication
DOI: 10.1039/C4NR06954D
Citation: Nanoscale, 2015,7, 3453-3459
  •   Request permissions

    Giant reversible nanoscale piezoresistance at room temperature in Sr2IrO4 thin films

    N. Domingo, L. López-Mir, M. Paradinas, V. Holy, J. Železný, D. Yi, S. J. Suresha, J. Liu, C. Rayan Serrao, R. Ramesh, C. Ocal, X. Martí and G. Catalan, Nanoscale, 2015, 7, 3453
    DOI: 10.1039/C4NR06954D

Search articles by author

Spotlight

Advertisements